Ahşap ve ahşap kompozitlerinde sünmeyi etkileyen faktörler

Ahşap ve ahşap kompozitlerinin en büyük özelliklerinden biriside yük altında zamanla sünme özelliğidir. Sünme yüke ve zamana bağlı olan elastik olmayan deformasyon olarak bilinir. Genelde sünme konstrüksiyonlarda yüksek sıcaklıklara maruz kalan metal ve seramik gibi malzemelerde önemli bir özelliktir. Ancak ahsap ve kompozitleri gibi polimer malzemelerde sıcaklık önemli bir faktör değildir ve sünme normal şartlar altında uzun süreli yüklenmelerde görülebilir.

Anahtar Kelimeler:

orman ürünleri, yüklemek, nem içeriği, kompozit ahşap, yapı malzemeleri, sünme, mekanik özellikler

Factors effecting creep in wood and wood composites

One of the most confounding characteristics of wood and wood composites is their tendency to creep under load. Creep is known as inelastic deformation of materials as a function of applied load and time. Normally, creep is an important factor when metals and ceramics are used for structural members or mechanical parts that are subjected to high temperatures. For some materials, however, such as polymers and composite materials, including wood or concrete, temperature is not a critical factor and creep can occur from long-term load application at room conditions.

Keywords:

forest products, loading, moisture content, composite boards, building materials, creep, mechanical properties,

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